During female reproductive cycle, Progesterone promote secretory changes in the uterine endometrium, after ovulation

TLS Online TPP Program

#Id: 2875

#Unit 13. Methods in Biology

According to the Beer–Lambert law, absorbance is linearly proportional to the concentration of chromophores.

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#Id: 1340

#Unit 4. Cell Communication and Cell Signaling

HER1 & HER4, can form stable homodimers after binding a growth factor.

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#Id: 6232

#Unit 8. Inheritance Biology

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#Id: 7286

#Unit 6. System Physiology – Plant

That time, there was no selective pressure for rubisco to discriminate between CO2 and O2. 

The Km for CO2 is about 9 microM, and that for O2 is about 350 microM. The modern atmosphere contains about 20% O2 and only 0.04% CO2, so an aqueous solution in equilibrium with air at room temperature contains about 250 microM O2 and 11 microM CO2—concentrations that allow significant O2 “fixation” by rubisco and thus a significant waste of energy.

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#Id: 3305

#Unit 6. System Physiology – Plant

To prevent oxidative damage by • O2 2 , cells have several forms of the enzyme superoxide dismutase, which catalyzes the formation of hydrogen peroxide (H2O2)